Long path multiple

{
  "id": "MLC-T-OAG-002215",
  "term": "Long path multiple",
  "field": "Oil and gas",
  "definitions": [
    "A type of multiple reflection in seismic data where the seismic energy travels a significantly longer path than the primary reflection. These multiples often involve reflections from the free surface or strong subsurface interfaces, bouncing multiple times before returning to the receiver. They can interfere with primary reflections from deeper targets and require specialized processing techniques for suppression.",
    "A seismic reflection that has undergone multiple bounces within the subsurface or between the surface and a subsurface reflector, resulting in a travel path significantly longer than the primary reflection from the same interface. These events arrive later in the seismic record and can obscure genuine primary reflections from deeper targets. Specialized processing algorithms are used to identify and attenuate long-path multiples."
  ],
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/long-path-multiple/"
}